// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef V8_AST_AST_FUNCTION_LITERAL_ID_REINDEXER_H_
#define V8_AST_AST_FUNCTION_LITERAL_ID_REINDEXER_H_

#include "src/ast/ast-traversal-visitor.h"
#include "src/base/macros.h"

namespace v8 {
namespace internal {

    // Changes the ID of all FunctionLiterals in the given Expression by adding the
    // given delta.
    class AstFunctionLiteralIdReindexer final
        : public AstTraversalVisitor<AstFunctionLiteralIdReindexer> {
    public:
        AstFunctionLiteralIdReindexer(size_t stack_limit, int delta);
        ~AstFunctionLiteralIdReindexer();

        void Reindex(Expression* pattern);

        // AstTraversalVisitor implementation.
        void VisitFunctionLiteral(FunctionLiteral* lit);

    private:
        int delta_;

        DISALLOW_COPY_AND_ASSIGN(AstFunctionLiteralIdReindexer);
    };

} // namespace internal
} // namespace v8

#endif // V8_AST_AST_FUNCTION_LITERAL_ID_REINDEXER_H_
